Carrier route record

B6FLL→PIT

JetBlue Airways · Fort Lauderdale to Pittsburgh

Flights: 242
Period: July 2025 to June 2026
Share of route: 22%
Carriers: 3

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with JetBlue Airways.

JetBlue on FLL to PIT earns a D, which is as low as this site's scale goes for a reason. Only 57.6% of flights arrive inside the 15-minute window, 20 points worse than the national rate of 77.6%. Late arrivals average a little over an hour. Treat any tight connection here as a coin flip. That rests on 242 flights. The strongest carrier on the route with a full sample, Spirit Airlines, flew 471 at 70.9% on time.

The national on-time rate over the same period is 77.6%, so JetBlue on FLL to PIT runs 20 points behind the country as a whole. Across a thousand flights that is about 200 extra late arrivals.

On time

57.6%

Arrivals under 15 minutes late, of 236 completed flights

Avg delay

81 min

Across delayed arrivals only, not all flights

Cancelled

1.65%

National rate is 1.81%

Whole route

66.7%

Every carrier on FLL to PIT, 1,109 flights

These figures cover 242 flights between July 2025 and June 2026. Beyond the headline rate, 19.5% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Carrier by carrier

JetBlue against every carrier on FLL to PIT

JetBlue flew 242 of the 1,109 flights on FLL to PIT, about 22% of it. Its 57.6% on time is 9 points worse than the route as a whole, which runs 66.7%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Spirit at 70.9% to JetBlue at 57.6%.

The two carriers here are closely matched: 4 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.

On-time performance by carrier on FLL to PIT
Airline	Flights	On time	Avg delay	Cancelled	Grade
Spirit Airlines	471	70.9%	69 min	4.25%	C−
Southwest Airlines	396	67.4%	57 min	0.76%	C+
JetBlue Airways (this page)thin sample	242	57.6%	81 min	1.65%	D

Spirit Airlines cancels 4.3% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Departure window

When JetBlue runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 242 flights.

The overnight block holds up unusually well at 57.9% on time across 241 flights. Red-eyes fly into empty airspace and empty gates, and they are the first rotation of the aircraft's day rather than the last. The 8pm–5am window is the busiest, with 241 flights scheduled in it.

Across the year

JetBlue on FLL to PIT through the year

Oct–Dec 202561 flights53.3%
Jan–Mar 202690 flights43.5%
Apr–Jun 202691 flights73.6%

Scale runs 35% to 80%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 57.6% on time across 242 flights.

JetBlue on FLL to PIT did not run the same all year. Its best quarter was Apr–Jun 2026 at 73.6% on time and its weakest Jan–Mar 2026 at 43.5%, a swing of 30 points on roughly 81 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Across the week, Tuesday is the strongest day at 74.3% on time and Monday the weakest at 38.2%. 36 points is a smaller lever than departure hour, but it is free.

Delay causes

Why JetBlue runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 55% of the 8,120 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Late-arriving aircraft
55%
Carrier
31%
National Airspace System
12%
Extreme weather
2%
Security
0%

55% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 8,120 reported delay minutes here, that single category outweighs weather by 24 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 8,120 reported delay minutes.

Cancellations sit at 1.65% against a national 1.81%, which is ordinary. Diversions add another 0.83%.

Connections and stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 19.5% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The 994 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The return leg is a different operation and performs like one: it runs 82.3% on time across 241 flights, 25 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 25 points of difference.

One caution: this is a thin sample. 242 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking JetBlue on FLL to PIT

Put together: treat all of this as provisional. 242 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 57.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 236 completed flights over 12 months sit behind that.

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures